package lab02.test16;


public class Test {

    public static void main(String[] args) {

        Add a1=new Add();

        System.out.println("加法：2+7="+a1.A(2,7));

        System.out.println("************************");

        Minus a2=new Minus();

        System.out.println("减法：8-4="+a2.A(8,4));

        System.out.println("************************");

        Multiplication a3=new Multiplication();

        System.out.println("乘法：4*8="+a3.A(4,8));

        System.out.println("************************");

        Division a4=new Division();

        System.out.println("除法：27/9="+a4.A(27,9));

    }

}
